How does proportional reasoning relate to percent

1 answer:

8 0

Well when you do a percent you wanna set up a proportion. Part over total and then percent over 100. I’m not sure if this helped but this is my advice. Remember the part over total, you might have to search for it, but when you set that up just multiply and divide and you got it!! Hope this helped (:

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Find the inverse function of y=8x.

Zarrin [17]

Answer:

x/8

Step-by-step explanation:

how I see the problem I just put the 1 over the 8 because you can't really do anything else with the problem

4 0

2 years ago

A ferry operator takes tourists to an island.

Oksanka [162]

The fare of $(20 - 2.5) = $17.5 will maximize the total fare.

<h3>What is Differentiation?</h3>

Differentiation means the rate of change of one quantity with respect to another. The speed is calculated as the rate of change of distance with respect to time.

Here, The operator for a round-trip fare of $20, carries an average of 500 people per day.

It is estimated that 20 fewer people will take the trip, for each $1 increase in fare.

for $x increase in fare, 20x less people will take the trip and at that time the total fare F is given by

f(x) =(20 + x)(500 - 20x)

f (x) = 10000 + 100x - 20x²

For f(x) to be maximum, the condition is dy/dx = 0

100 - 40x = 0

⇒ x = 2.5

Thus, the fare of $(20 - 2.5) = $17.5 will maximize the total fare.

Learn more about Differentiation from:

brainly.com/question/24062595

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